10 Questions
What is the microscopic anatomy of spongy bone?
Irregularly organized trabeculae with no osteons
Where is compact bone most present?
Diaphysis
What is endochondral ossification?
Process starting with a cartilage blueprint and involving primary and secondary ossification centers
What is the difference between spongy and compact bone?
Spongy bone is irregularly organized while compact bone is highly organized
What is bone remodeling?
The process of old bone resorption and new bone formation
Which type of bone is primarily responsible for producing blood cells?
Irregular bone
Where is hyaline cartilage primarily found in a long bone?
Metaphysis
Which type of cell is responsible for bone growth and synthesizing the bone matrix?
Osteoblast
Where is the nutrient artery primarily responsible for supplying blood in a long bone?
Diaphysis
Which part of the skeletal system consists of essentially the limbs?
Appendicular skeleton
Study Notes
Bone Structure
- Spongy bone has a porous, sponge-like microscopic anatomy with a network of trabeculae and large spaces between them.
- Compact bone is most present in the shafts of long bones, where it forms a dense, compact layer.
Ossification
- Endochondral ossification is a process of bone formation that involves the replacement of cartilage with bone tissue.
Bone Types
- The main difference between spongy and compact bone is their density and structure: spongy bone is porous and lightweight, while compact bone is dense and compact.
Bone Remodeling
- Bone remodeling is the process by which bones are constantly resorbed and replaced with new bone tissue.
Blood Cell Production
- Spongy bone is primarily responsible for producing blood cells, specifically in the bone marrow.
Cartilage Distribution
- Hyaline cartilage is primarily found in a long bone at the ends, where it forms a thin layer of cartilage that covers the bone surface.
Bone Cells
- Osteoblasts are the type of cell responsible for bone growth and synthesizing the bone matrix.
Blood Supply
- The nutrient artery is primarily responsible for supplying blood in a long bone, specifically at the midpoint of the shaft.
Skeletal System
- The appendicular skeleton consists of essentially the limbs, including the upper and lower extremities.
Test your knowledge of the microscopic anatomy of spongy bone, also known as cancellous or trabecular bone, which is arranged in a honeycomb pattern and makes up 20% of bone body mass. Learn about the differences between spongy and compact bone.
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